Machine head button



FIG. 1 is front perspective view of a machine head button showing the first embodiment of my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is cross-sectional view thereof, taken along line 6-6 in FIG. 4;

FIG. 7 is a front perspective view of a machine head button, showing the second embodiment of the design;

FIG. 8 is a top plan view thereof;

FIG. 9 is front elevational view thereof;

FIG. 10 is a bottom plan view thereof;

FIG. 11 is a rear elevational view thereof; and,

FIG. 12 is a cross-sectional view thereof, taken along line 12-12 in FIG. 9.

The broken lines shown throughout the views represent the portions of the machine head button, which forms no part of the claimed design. 

CLAIM I claim the ornamental design for a machine head button, as shown and described. 